function psnr = extractPSNRFromTxt(psnrTable, k, delimiter)
if nargin < 2, k = 1; end
if nargin < 3, delimiter = '	'; end

psnrCell = cell(size(psnrTable, 1), 1);
for i = 1 : size(psnrTable, 1)
    psnr = strsplit(psnrTable(i, :), delimiter);
    psnr = cellfun(@(x)strsplit(x, '/'), psnr, 'uniformoutput', false);
    psnr = [psnr{:}];
    psnr = cellfun(@str2double, psnr(k : 2 : end), 'uniformoutput', false);
    psnrCell{i} = [psnr{:}];
end
psnr = cell2mat(psnrCell);